5 7 x 4 20 July 8, 2019 16 32 64 128 5 x 4 )= 20 7x 7 4 x )- 5 3x 20 4x Solve 4 5 x 7 )= 20 7 x 4 13 x 5 20 7 x 5 3 3 20 4 Solve 2 4 x 5 7 x 20 X times 4 5 7 20 7 20 4 5 x 2 3